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WO/2011/162033 |
Provided is a calcium removal method that can reduce operating costs. A solution (L2) that contains potassium and/or sodium and calcium is passed through an ion exchange resin (35) and the potassium and/or sodium and calcium is isolated....
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WO/2011/141953 |
Provided is a method for the operation of an ion exchanger, which overcomes the problems of split-flow regeneration and can attain a higher yield. The method comprises a regeneration process that includes a first regeneration process and...
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WO/2011/136445 |
A water pressure regenerated type water softener including: a timer control valve having a valve control unit rotated by a timer spring and into which raw water is supplied; a plurality of conduits into which the raw water selectively fl...
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WO/2011/132740 |
Disclosed is a system and method for recycling rare metals, which separates and collects rare metals by making use of chemical actions in an efficient combination of adsorption and separation, thereby reducing work load and improving wor...
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WO/2011/117536 |
The present invention relates to a composition for regenerating resins, particularly cation exchange resins used in water softeners. The alkali metal chloride composition also comprises an alkylether carboxylic acid and an alkali metal c...
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WO/2011/101342 |
The invention relates to a method for separating fluorinated acids, in particular perfluorocarboxylic acids and perfluorosulfonic acids or the salts thereof from diluted aqueous solutions with the aid of anion exchangers.
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WO/2011/102479 |
In a process for producing an aromatic carboxylic acid, when a chelate resin having a pyridine ring, which is used in the step for absorbing and collecting a bromide ion and a heavy metal ion derived from a catalyst by means of an oxidat...
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WO/2011/102480 |
In a process for producing a terephthalic acid, when a chelate resin having a pyridine ring, which is used in the step for absorbing and collecting a bromide ion and a heavy metal ion derived from a catalyst by means of an oxidation reac...
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WO/2011/096448 |
Provided is a method of recovering anionic fluorinated emulsifiers, said method being capable of easily and efficiently recovering anionic fluorinated emulsifiers to which a basic ion exchange resin has been adsorbed. The basic ion excha...
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WO/2011/087668 |
Methods for regenerating acidic ion-exchange resins and reusing regenerants in such methods are provided. A spent ion-exchange resin is contacted with an alcohol ion-exchange regenerant. The spent ion-exchange resin is thereafter contact...
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WO/2011/070798 |
Disclosed are: a metal recovery method which can separate and recover a metal from wastewater rapidly and in a large quantity; a substance for use in the separation of a metal; and a water purification device utilizing the substance. Spe...
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WO/2011/052505 |
A water processing device (1) includes a purification unit (4) in which an ion trap unit (3) is provided that traps ions in raw water by making the raw water contact an ion-exchange resin (3a). In the water processing device (1), the ion...
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WO/2011/050607 |
A control valve for a water softener comprises a motorised valve (202), a control circuit board (201) and two conductivity probes (101, 103). The motorised valve (202) is provided with a salt-absorption/water-refill port (601) and couple...
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WO/2011/045912 |
Disclosed is a novel adsorbent having high boron adsorption capacity and having resistance against an alkali and an acid. Specifically disclosed is a boron adsorbent represented by general formula (1) (wherein R1 represents a hydrogen at...
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WO/2011/043062 |
Disclosed is a water treatment device characterized by comprising a control means (30) which repeats processes of causing a first water softening means (5) to perform a water softening treatment of a predetermined flow rate, stopping the...
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WO/2011/040278 |
Provided is an ion-exchange device including a column in which an anion-exchange resin and a cation-exchange resin are prevented, without fail, from being reversely regenerated. With the device, it is possible to produce high-quality dei...
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WO/2011/038198 |
Provided according to some embodiments of the invention are anion exchange polyelectrolytes that include an at least partially fluorinated polyaromatic polymer backbone; and at least one cationic functional group pendant therefrom. Also ...
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WO/2011/027213 |
A process for the treatment of an effluent is provided and includes the steps of removing entrained solids and organic compounds from the effluent, preferably by means of filtration; removing uranium from the effluent using a strong base...
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WO/2011/016197 |
A washing machine provided with: a washing tub; a water tub; a drive unit; a water supply unit; a water drain unit; a water softening unit provided between the water supply unit and the water tub and loaded with a weakly acidic cation ex...
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WO/2010/145834 |
In a method for removing ions from a liquid, the liquid flows through at least one ion exchanger in a charging zone, wherein the ion exchanger is charged with ions and ions are removed from the liquid. Further, the ion exchanger is elect...
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WO/2010/145834 |
In a method for removing ions from a liquid, the liquid flows through at least one ion exchanger in a charging zone, wherein the ion exchanger is charged with ions and ions are removed from the liquid. Further, the ion exchanger is elect...
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WO/2010/124354 |
A method of producing a scale-control resin including combining in an aqueous solution a cation-exchange resin and a weak-acid anion mineral or salt having a multivalent cation to allow ion exchange between the resin and the multivalent ...
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WO/2010/125298 |
The invention relates to an ironing appliance comprising a water tank (10; 110; 210), a steam generator (11; 111; 211) and a supply circuit connecting said water tank to said steam generator (11; 111; 211), said supply circuit including ...
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WO/2010/109244 |
A process for the reactivation of an acidic ion exchange resin is described. The invention relates to the treatment of an at least partially deactivated resin which has been deactivated by contact with an impure ethylenically unsaturated...
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WO/2010/104097 |
A filtration membrane (10) comprises a membrane body (1) having multiple pores (3) for filtering raw water, and a particle layer (6) for removal of impurities contained in raw water that adhere to and accumulate on a surface (8) of the m...
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WO/2010/103640 |
Even in the case of using a raw water with bad qualities as the extrusion water, a processed water having a purity not exceeding the allowable leakage hardness can be surely acquired. At the same time, the water can be collected in a com...
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WO/2010/071080 |
Disclosed is an adsorbent material which has both excellent trapping ability due to hydrophobic interaction and excellent trapping ability due to ion exchange, and which can efficiently trap and release the intended component in a soluti...
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WO/2010/066040 |
A diamine absorbent that contains heat stable salts is regenerated using an ion exchange process wherein the cation exchange resin is regenerated using sulfurous acid reflux.
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WO/2010/064143 |
The present disclosure is directed towards systems and methods for the treatment of wastewater. A system in accordance with one particular embodiment may include a vacuum filter band system configured to receive a saturated ion exchange ...
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WO/2010/064149 |
The present disclosure is directed towards systems and methods for the treatment of wastewater. A system in accordance with one particular embodiment may include at least one resin tank including an ion exchange resin configured to targe...
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WO/2010/064149 |
The present disclosure is directed towards systems and methods for the treatment of wastewater. A system in accordance with one particular embodiment may include at least one resin tank including an ion exchange resin configured to targe...
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WO/2010/056861 |
Methods, systems and compositions for recovery of regenerant ions from spent regenerant solution by utilization of electrodialysis are provided. For example, in certain aspects methods for separating spent regenerant using an electrodial...
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WO/2010/045934 |
The invention relates to a method for operating a water softening system (31), the water softening system (31) comprising – a softening apparatus, comprising in particular at least one tank (32a, 32b) having an ion exchange resin, - a ...
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WO/2010/045934 |
The invention relates to a method for operating a water softening system (31), the water softening system (31) comprising – a softening apparatus, comprising in particular at least one tank (32a, 32b) having an ion exchange resin, - a ...
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WO/2010/025697 |
The invention relates to a method for operating a water softening system (1) comprising – an automatically adjustable blending device for mixing a blended water flow V(t)Verschnitt from a first, softened partial flow V(t)teil1weich and...
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WO/2010/023288 |
A process for obtaining a metalloaluminophosphate (MeAPO) molecular sieve comprising the following steps in the order given: a), providing an aqueous solution containing sources of at least 2 of the following: Metals (Me), Al and P; b). ...
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WO/2010/023289 |
The invention relates to a process for obtaining a metalloaluminophosphate (MeAPO) molecular sieve comprising the following steps in the order given: a) providing a homogeneous solution containing sources of at least 2 of the following: ...
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WO/2010/017792 |
A control unit (1, 1a) for a softening apparatus (2), comprising a primary inlet (4) for untreated water, a primary outlet (7) for mixed water, a sensor for determining the water hardness of the untreated water WHroh or of the mixed wate...
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WO/2010/016410 |
Provided is filtration and desalination equipment which can ensure a sufficient processing capacity while reducing facility costs and building costs, and can attain good operability. Filtration and desalination equipment (10) comprises a...
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WO/2010/008055 |
A method for wastewater treatment is provided by which a heavy-metal compound derived from a process for producing an aromatic carboxylic acid can be efficiently recovered from a wastewater containing the heavy-metal compound. The metho...
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WO/2010/001728 |
Provided is a method for quickly separating radioactive copper from nickel containing radioactive copper and radioactive cobalt. The nickel that contains radioactive copper and radioactive cobalt is dissolved in an acidic solution and pa...
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WO/2009/133251 |
The invention relates to a water treatment device wherein the water being treated is contacted with the treatment medium (4), which is regularly regenerated, optionally using a regeneration medium (19), and a controller (48) is used ther...
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WO/2009/133251 |
The invention relates to a water treatment device wherein the water being treated is contacted with the treatment medium (4), which is regularly regenerated, optionally using a regeneration medium (19), and a controller (48) is used ther...
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WO/2009/126579 |
A water purification system and method includes a first delivery pump to maintain a flow of water into a multi media filter, which filters the pumped water, which is then pumped by a reverse osmosis pump through a plurality of reverse os...
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WO/2009/108993 |
A process for the treatment of solutions or slurries containing dissolved metals comprises the steps of (a) contacting the solution or slurry with an ion exchange resin that selectively removes one or more dissolved metals from the solut...
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WO/2009/071066 |
In summary, in order to detect the hardness of water using the electrical conductivity of raw water in a water softening device (1) that divides an approaching raw water stream V(t)raw into two partial streams V(t)partial1soft, V(t)parti...
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WO/2009/071066 |
In summary, in order to detect the hardness of water using the electrical conductivity of raw water in a water softening device (1) that divides an approaching raw water stream V(t)raw into two partial streams V(t)partial1soft, V(t)parti...
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WO/2009/066461 |
Disclosed is a method for replacing interlayer ions that can efficiently replace interlayer anions of a hydrotalcite-like substance. Also disclosed is an apparatus for replacing interlayer ions. In the method, the amount of cations, whic...
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WO/2009/028944 |
The present invention relates to a process for separating a charged species from an aqueous system, wherein the process comprises the following steps: (a) a first aqueous system comprising the charged species is contacted at a first temp...
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WO/2009/010209 |
The invention relates to a method of regenerating anion exchangers which are loaded with hexachlorostannate.
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